State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

T616 Buffalo Crk R

Fair

Over: Buffalo Creek

2.5Mi SW of Berlin, Somerset, PA

Built 1990 Load: 32.7 t ADT: 50

Cambridge Road

Fair

Over: Spring Creek

800 W of Coventry Road, Lebanon, PA

Built 2013 Load: 32.7 t ADT: 100

IRON HILL ROAD

Fair

Over: COOKS RUN

1/4 Mi N of PA202 3034-E2, Bucks, PA

Built 2005 Load: 32.7 t ADT: 500

OLD ORCHARD ROAD

Fair

Over: LUPHERS RUN

0.1 MI EAST HETRICK ROAD, Snyder, PA

Built 1901 Load: 32.7 t ADT: 500

T539 ROLLING GR DR

Fair

Over: ROLLING GREEN RUN

0.20 MI SOUTH OF T-540 BO, Snyder, PA

Built 1901 Load: 32.7 t ADT: 500

KELLY ROAD

Fair

Over: BR.OF NESHAMINY CREEK

0.1 E SR 0611 3034-K8, Bucks, PA

Built 1977 Load: 32.7 t ADT: 700

NICKLAUS DRIVE

Fair

Over: BR. OF NESHAMINY CREEK

1/4 Mi S SR 2089 3034-K8, Bucks, PA

Built 1975 Load: 32.7 t ADT: 200

Tarr Hollow T-618

Fair

Over: U. Trib. to Turtle Creek

0.2m north of 22, Westmoreland, PA

Built 1989 Load: 32.7 t ADT: 401

T-416 SHROYER MILL

Fair

Over: MUDDY CREEK

1mi. N of Mahood Rd. Int, Butler, PA

Built 2014 Load: 32.7 t ADT: 100

County Road

Fair

Over: North Moreland Lake

Allegheny TWP, Westmoreland, PA

Built 2008 Load: 32.7 t ADT: 500

Frog Road

Fair

Over: Branch of Brush Creek

North Huntingdon Twp, Westmoreland, PA

Built 2000 Load: 32.7 t ADT: 100

Bunker Hill Dr

Fair

Over: Trib. of Brush Run

Peters TWP, Washington, PA

Built 1998 Load: 32.7 t ADT: 250

Gombach Road

Fair

Over: Bushy Run

0.1 MI FROM INT W/WATT RD, Westmoreland, PA

Built 1990 Load: 32.7 t ADT: 150

TOLLGATE ROAD

Fair

Over: HICKORY CREEK

1.3 Mi S. PA-32 2811-J6, Bucks, PA

Built 1989 Load: 32.7 t ADT: 150

BERGSTROM ROAD

Fair

Over: PINE RUN

1.2 Mi S PA-413 2923-B4, Bucks, PA

Built 1990 Load: 32.7 t ADT: 300

GO Carlson Blvd.

Fair

Over: Valley Run

1.25 Mi W PA-340 3580-H1, Chester, PA

Built 2001 Load: 32.7 t ADT: 4,000

Lincoln Ter

Fair

Over: Trib to Conococheague Ck

Norlo Pk .2 mi S of SR30, Franklin, PA

Built 1992 Load: 32.7 t ADT: 1,036

Wilkson Lane

Fair

Over: Trib. Conococheague Ck.

Fayetteville 1.4 S. SR30, Franklin, PA

Built 1992 Load: 32.7 t ADT: 1,268

South McCully Road

Fair

Over: Thompson Run

300 W OF THOMPSON RUN RD, Allegheny, PA

Built 1950 Load: 32.7 t ADT: 75

Pine Valley Dr.

Fair

Over: Humms Run

300 N SR 286, Allegheny, PA

Built 1995 Load: 32.7 t ADT: 250

NEW BRITAIN ROAD

Fair

Over: TRIB. NESHAMINY CREEK

.5 MI S OF L ST RD3034-G4, Bucks, PA

Built 1990 Load: 32.7 t ADT: 500

T325 WALLACE ROAD

Fair

Over: Catfish Run

BTW T976 & SR3013, Allegheny, PA

Built 2007 Load: 32.7 t ADT: 5,000

T-699 HARTMAN ROAD

Fair

Over: FOURMILE CREEK

0.25 MI E OF T-603 KIRSCH, Erie, PA

Built 1950 Load: 32.7 t ADT: 250

T-523 Brookens Rd.

Fair

Over: Cold Spring Run

1.0 MI N of Fayetteville, Franklin, PA

Built 2000 Load: 32.7 t ADT: 401

ESSINGTON AVENUE

Fair

Over: MINGO CREEK 3699-D7

PHL INTL AIRPORT, Philadelphia, PA

Built 1973 Load: 32.7 t ADT: 12,265

MINGO AVENUE

Fair

Over: MINGO CREEK 3699-D7

PHILA INTL AIRPORT, Philadelphia, PA

Built 1979 Load: 32.7 t ADT: 400

ENTERPRISE AVENUE

Fair

Over: EAGLE CREEK

PHILA INTL AIRPORT 3699E9, Philadelphia, PA

Built 1980 Load: 32.7 t ADT: 6,800

Hollow Road

Fair

Over: Zacharias Creek

.3 M S of SR 73-3143C8, Montgomery, PA

Built 1930 Load: 32.7 t ADT: 500

Hollow Road

Fair

Over: Tr Zacharias Creek

Fawn/Zacharias Rd 3143-C8, Montgomery, PA

Built 1996 Load: 32.7 t ADT: 500

Hollow Road

Fair

Over: Trib of Zacharias Creek

Doe Brook Lane/Fawn3143C8, Montgomery, PA

Built 1996 Load: 32.7 t ADT: 500

N Grange Avenue

Fair

Over: Tri to Skippack Creek

.2 M S of SR 4005-3142G10, Montgomery, PA

Built 2003 Load: 32.7 t ADT: 1,300

MAPLEWOOD AVE

Fair

Over: LITTLE DARBY CREEK

E. OF WAYNE AVE. 3476-F5, Delaware, PA

Built 1930 Load: 32.7 t ADT: 1,500

WILLOW AVE

Fair

Over: GULPH CREEK

NORTH OF PLANT AVE, Delaware, PA

Built 1980 Load: 32.7 t ADT: 80

AGNES AVE/WAVERLY

Fair

Over: STONEY CREEK

INT. WAVERLY TER. 3697-J6, Delaware, PA

Built 1980 Load: 32.7 t ADT: 1,000

BUNTING LANE

Fair

Over: MUCKINIPATTIS CREEK

E OF ASHURST AVE 3698-B3, Delaware, PA

Built 1975 Load: 32.7 t ADT: 1,000

ASHURST AVE

Fair

Over: MUCKINIPATTIS CREEK

S OF RHOADES AVE 3698-B03, Delaware, PA

Built 1977 Load: 32.7 t ADT: 100

ASHLAND AVE

Fair

Over: MUCKINIPATTIS CREEK

N OF BROOKWOOD LN 3698-B4, Delaware, PA

Built 1990 Load: 32.7 t ADT: 500

MARSH RD

Fair

Over: W. BR. OF NAAMANS CREEK

N OF RYANS RUN 3805-D7, Delaware, PA

Built 1998 Load: 32.7 t ADT: 1,000

WILLIAM RD

Fair

Over: SPRING RUN

S OF MAHER BLVD 3805-F5, Delaware, PA

Built 1995 Load: 32.7 t ADT: 300

CHERRY CIRCLE

Fair

Over: BRANCH OF WEBB CREEK

S OF MAPLE LN 3804-G03, Delaware, PA

Built 1998 Load: 32.7 t ADT: 100

STACKHOUSE MILL RD

Fair

Over: BR. OF RIDLEY CREEK

NE OF VALLEY RD, Delaware, PA

Built 1970 Load: 32.7 t ADT: 200

TROOP FARM RD

Fair

Over: BR. OF HUNTER RUN

W OF MERLIN RD 3586-F5, Delaware, PA

Built 2003 Load: 32.7 t ADT: 500

CHESTER AVE

Fair

Over: BR. OF COBBS CREEK

1000E CEDAR AVE 3698-K3, Delaware, PA

Built 1910 Load: 32.7 t ADT: 5,000

US 422 E Chocolate

Fair

Over: Drainage Ditch

1.4 MI E OF PA 743, Dauphin, PA

Built 1949 Load: 32.7 t ADT: 15,639

T-672UNION LEBOEUF

Fair

Over: HORTON RUN

2500 FT SOUTH OF SR 0097, Erie, PA

Built 1957 Load: 32.7 t ADT: 150

SOUTHPOINTE BLVD.

Fair

Over: MORGANZA RUN

100 N OF MORGANZA RESERV, Washington, PA

Built 1995 Load: 32.7 t ADT: 2,000

Creekside Dr T-688

Fair

Over: Snitz Creek

0.5 MI N of Colebrook Rd, Lebanon, PA

Built 1990 Load: 32.7 t ADT: 720

T-932 Chestnut St.

Fair

Over: Hartman Run

600 Feet NW of N Main St, York, PA

Built 1980 Load: 32.7 t ADT: 500

T-844 11th Ave

Fair

Over: Trib to Mill Creek

50 Ft S of Whiteford Rd., York, PA

Built 1980 Load: 32.7 t ADT: 100

T-837 Eden Rd

Fair

Over: Trib. to Codorus Creek

0.2 MI NW of Sand Bank Rd, York, PA

Built 2019 Load: 32.7 t ADT: 100

Showing 5,151-5,200 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.